/**********************************************************************
* $Id$      lpc_i2s.h           2011-06-02
*//**
* @file     lpc_i2s.h
* @brief    Contains all macro definitions and function prototypes
*           support for I2S firmware library on LPC
* @version  1.0
* @date     02. June. 2011
* @author   NXP MCU SW Application Team
* 
* Copyright(C) 2011, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors'
* relevant copyright in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers.  This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
**********************************************************************/

/* Peripheral group ----------------------------------------------------------- */
/** @defgroup I2S   I2S (Inter-IC Sound bus)
 * @ingroup LPC_CMSIS_FwLib_Drivers
 * @{
 */

#ifndef __LPC_I2S_H_
#define __LPC_I2S_H_

/* Includes ------------------------------------------------------------------- */
#include "LPC407x_8x_177x_8x.h"
#include "lpc_types.h"


#ifdef __cplusplus
extern "C"
{
#endif

/* Public Macros -------------------------------------------------------------- */
/** @defgroup I2S_Public_Macros I2S Public Macros
 * @{
 */

/*********************************************************************//**
 * I2S configuration parameter defines
 **********************************************************************/
/** I2S Wordwidth bit */
#define I2S_WORDWIDTH_8     ((uint32_t)(0))
#define I2S_WORDWIDTH_16    ((uint32_t)(1))
#define I2S_WORDWIDTH_32    ((uint32_t)(3))
/** I2S Channel bit */
#define I2S_STEREO          ((uint32_t)(0))
#define I2S_MONO            ((uint32_t)(1))
/** I2S Master/Slave mode bit */
#define I2S_MASTER_MODE     ((uint8_t)(0))
#define I2S_SLAVE_MODE      ((uint8_t)(1))
/** I2S Stop bit */
#define I2S_STOP_ENABLE     ((uint8_t)(1))
#define I2S_STOP_DISABLE    ((uint8_t)(0))
/** I2S Reset bit */
#define I2S_RESET_ENABLE    ((uint8_t)(1))
#define I2S_RESET_DISABLE   ((uint8_t)(0))
/** I2S Mute bit */
#define I2S_MUTE_ENABLE     ((uint8_t)(1))
#define I2S_MUTE_DISABLE    ((uint8_t)(0))
/** I2S Transmit/Receive bit */
#define I2S_TX_MODE         ((uint8_t)(0))
#define I2S_RX_MODE         ((uint8_t)(1))
/** I2S Clock Select bit */
#define I2S_CLKSEL_FRDCLK   ((uint8_t)(0))
#define I2S_CLKSEL_MCLK     ((uint8_t)(2))
/** I2S 4-pin Mode bit */
#define I2S_4PIN_ENABLE     ((uint8_t)(1))
#define I2S_4PIN_DISABLE    ((uint8_t)(0))
/** I2S MCLK Enable bit */
#define I2S_MCLK_ENABLE     ((uint8_t)(1))
#define I2S_MCLK_DISABLE    ((uint8_t)(0))
/** I2S select DMA bit */
#define I2S_DMA_1           ((uint8_t)(0))
#define I2S_DMA_2           ((uint8_t)(1))

/**
 * @}
 */

/* Private Macros ------------------------------------------------------------- */
/** @defgroup I2S_Private_Macros I2S Private Macros
 * @{
 */

/*********************************************************************//**
 * Macro defines for DAO-Digital Audio Output register
 **********************************************************************/
/** I2S wordwide - the number of bytes in data output - 8 bits*/
#define I2S_DAO_WORDWIDTH_8     ((uint32_t)(0))
/** I2S wordwide - the number of bytes in data output - 16 bits*/
#define I2S_DAO_WORDWIDTH_16    ((uint32_t)(1)) 
/** I2S wordwide - the number of bytes in data output - 32 bits*/
#define I2S_DAO_WORDWIDTH_32    ((uint32_t)(3)) 
/** I2S control mono or stereo format */
#define I2S_DAO_MONO            ((uint32_t)(1<<2))
/** I2S control stop mode */
#define I2S_DAO_STOP            ((uint32_t)(1<<3))
/** I2S control reset mode */
#define I2S_DAO_RESET           ((uint32_t)(1<<4))
/** I2S control master/slave mode */
#define I2S_DAO_SLAVE           ((uint32_t)(1<<5))
/** I2S word select half period minus one */
#define I2S_DAO_WS_HALFPERIOD(n)    ((uint32_t)(n<<6))
/** I2S control mute mode */
#define I2S_DAO_MUTE            ((uint32_t)(1<<15))

/*********************************************************************//**
 * Macro defines for DAI-Digital Audio Input register
**********************************************************************/
/** I2S wordwide - the number of bytes in data input - 8 bit*/
#define I2S_DAI_WORDWIDTH_8     ((uint32_t)(0))
/** I2S wordwide - the number of bytes in data input - 16 bit*/
#define I2S_DAI_WORDWIDTH_16    ((uint32_t)(1))
/** I2S wordwide - the number of bytes in data input - 32 bit*/
#define I2S_DAI_WORDWIDTH_32    ((uint32_t)(3))
/** I2S control mono or stereo format */
#define I2S_DAI_MONO            ((uint32_t)(1<<2))
/** I2S control stop mode */
#define I2S_DAI_STOP            ((uint32_t)(1<<3))
/** I2S control reset mode */
#define I2S_DAI_RESET           ((uint32_t)(1<<4))
/** I2S control master/slave mode */
#define I2S_DAI_SLAVE           ((uint32_t)(1<<5))
/** I2S word select half period minus one (9 bits)*/
#define I2S_DAI_WS_HALFPERIOD(n)    ((uint32_t)((n&0x1FF)<<6))
/** I2S control mute mode */
#define I2S_DAI_MUTE            ((uint32_t)(1<<15))

/*********************************************************************//**
 * Macro defines for STAT register (Status Feedback register)
**********************************************************************/
/** I2S Status Receive or Transmit Interrupt */
#define I2S_STATE_IRQ       ((uint32_t)(1))
/** I2S Status Receive or Transmit DMA1 */
#define I2S_STATE_DMA1      ((uint32_t)(1<<1))
/** I2S Status Receive or Transmit DMA2 */
#define I2S_STATE_DMA2      ((uint32_t)(1<<2))
/** I2S Status Current level of the Receive FIFO (5 bits)*/
#define I2S_STATE_RX_LEVEL(n)   ((uint32_t)((n&1F)<<8))
/** I2S Status Current level of the Transmit FIFO (5 bits)*/
#define I2S_STATE_TX_LEVEL(n)   ((uint32_t)((n&1F)<<16))

/*********************************************************************//**
 * Macro defines for DMA1 register (DMA1 Configuration register)
**********************************************************************/
/** I2S control DMA1 for I2S receive */
#define I2S_DMA1_RX_ENABLE      ((uint32_t)(1))
/** I2S control DMA1 for I2S transmit */
#define I2S_DMA1_TX_ENABLE      ((uint32_t)(1<<1))
/** I2S set FIFO level that trigger a receive DMA request on DMA1 */
#define I2S_DMA1_RX_DEPTH(n)    ((uint32_t)((n&0x1F)<<8))
/** I2S set FIFO level that trigger a transmit DMA request on DMA1 */
#define I2S_DMA1_TX_DEPTH(n)    ((uint32_t)((n&0x1F)<<16))

/*********************************************************************//**
 * Macro defines for DMA2 register (DMA2 Configuration register)
**********************************************************************/
/** I2S control DMA2 for I2S receive */
#define I2S_DMA2_RX_ENABLE      ((uint32_t)(1))
/** I2S control DMA1 for I2S transmit */
#define I2S_DMA2_TX_ENABLE      ((uint32_t)(1<<1))
/** I2S set FIFO level that trigger a receive DMA request on DMA1 */
#define I2S_DMA2_RX_DEPTH(n)    ((uint32_t)((n&0x1F)<<8))
/** I2S set FIFO level that trigger a transmit DMA request on DMA1 */
#define I2S_DMA2_TX_DEPTH(n)    ((uint32_t)((n&0x1F)<<16))

/*********************************************************************//**
* Macro defines for IRQ register (Interrupt Request Control register)
**********************************************************************/
/** I2S control I2S receive interrupt */
#define I2S_IRQ_RX_ENABLE       ((uint32_t)(1))
/** I2S control I2S transmit interrupt */
#define I2S_IRQ_TX_ENABLE       ((uint32_t)(1<<1))
/** I2S set the FIFO level on which to create an irq request */
#define I2S_IRQ_RX_DEPTH(n)     ((uint32_t)((n&0x1F)<<8))
/** I2S set the FIFO level on which to create an irq request */
#define I2S_IRQ_TX_DEPTH(n)     ((uint32_t)((n&0x1F)<<16))

/********************************************************************************//**
 * Macro defines for TXRATE/RXRATE register (Transmit/Receive Clock Rate register)
*********************************************************************************/
/** I2S Transmit MCLK rate denominator */
#define I2S_TXRATE_Y_DIVIDER(n) ((uint32_t)(n&0xFF))
/** I2S Transmit MCLK rate denominator */
#define I2S_TXRATE_X_DIVIDER(n) ((uint32_t)((n&0xFF)<<8))
/** I2S Receive MCLK rate denominator */
#define I2S_RXRATE_Y_DIVIDER(n) ((uint32_t)(n&0xFF))
/** I2S Receive MCLK rate denominator */
#define I2S_RXRATE_X_DIVIDER(n) ((uint32_t)((n&0xFF)<<8))

/*************************************************************************************//**
 * Macro defines for TXBITRATE & RXBITRATE register (Transmit/Receive Bit Rate register)
**************************************************************************************/
#define I2S_TXBITRATE(n)    ((uint32_t)(n&0x3F))
#define I2S_RXBITRATE(n)    ((uint32_t)(n&0x3F))

/**********************************************************************************//**
 * Macro defines for TXMODE/RXMODE register (Transmit/Receive Mode Control register)
************************************************************************************/
/** I2S Transmit select clock source (2 bits)*/
#define I2S_TXMODE_CLKSEL(n)    ((uint32_t)(n&0x03))
/** I2S Transmit control 4-pin mode */
#define I2S_TXMODE_4PIN_ENABLE  ((uint32_t)(1<<2))
/** I2S Transmit control the TX_MCLK output */
#define I2S_TXMODE_MCENA        ((uint32_t)(1<<3))
/** I2S Receive select clock source */
#define I2S_RXMODE_CLKSEL(n)    ((uint32_t)(n&0x03))
/** I2S Receive control 4-pin mode */
#define I2S_RXMODE_4PIN_ENABLE  ((uint32_t)(1<<2))
/** I2S Receive control the TX_MCLK output */
#define I2S_RXMODE_MCENA        ((uint32_t)(1<<3))

/**
 * @}
 */



/* Public Types --------------------------------------------------------------- */
/** @defgroup I2S_Public_Types I2S Public Types
 * @{
 */

/**
 * @brief I2S configuration structure definition
 */
typedef struct {
    uint8_t wordwidth;      /** the number of bytes in data as follow:
                            -I2S_WORDWIDTH_8: 8 bit data
                            -I2S_WORDWIDTH_16: 16 bit data
                            -I2S_WORDWIDTH_32: 32 bit data */
    uint8_t mono;           /** Set mono/stereo mode, should be:
                            - I2S_STEREO: stereo mode
                            - I2S_MONO: mono mode */
    uint8_t stop;           /** Disables accesses on FIFOs, should be:
                            - I2S_STOP_ENABLE: enable stop mode
                            - I2S_STOP_DISABLE: disable stop mode */
    uint8_t reset;          /** Asynchronously reset tje transmit channel and FIFO, should be:
                            - I2S_RESET_ENABLE: enable reset mode
                            - I2S_RESET_DISABLE: disable reset mode */
    uint8_t ws_sel;         /** Set Master/Slave mode, should be:
                            - I2S_MASTER_MODE: I2S master mode
                            - I2S_SLAVE_MODE: I2S slave mode */
    uint8_t mute;           /** MUTE mode: when true, the transmit channel sends only zeroes, shoule be:
                            - I2S_MUTE_ENABLE: enable mute mode
                            - I2S_MUTE_DISABLE: disable mute mode */
    uint8_t Reserved0[2];
} I2S_CFG_Type;

/**
 * @brief I2S DMA configuration structure definition
 */
typedef struct {
    uint8_t DMAIndex;       /** Select DMA1 or DMA2, should be:
                            - I2S_DMA_1: DMA1
                            - I2S_DMA_2: DMA2 */
    uint8_t depth;          /** FIFO level that triggers a DMA request */
    uint8_t Reserved0[2];
}I2S_DMAConf_Type;

/**
 * @brief I2S mode configuration structure definition
 */
typedef struct{
    uint8_t clksel;         /** Clock source selection, should be:
                            - I2S_CLKSEL_FRDCLK: Select the fractional rate divider clock output
                            - I2S_CLKSEL_MCLK: Select the MCLK signal as the clock source */
    uint8_t fpin;           /** Select four pin mode, should be:
                            - I2S_4PIN_ENABLE: 4-pin enable
                            - I2S_4PIN_DISABLE: 4-pin disable */
    uint8_t mcena;          /** Select MCLK mode, should be:
                            - I2S_MCLK_ENABLE: MCLK enable for output
                            - I2S_MCLK_DISABLE: MCLK disable for output */
    uint8_t Reserved;
}I2S_MODEConf_Type;


/**
 * @}
 */


/* Public Functions ----------------------------------------------------------- */
/** @defgroup I2S_Public_Functions I2S Public Functions
 * @{
 */
/* I2S Init/DeInit functions ---------*/
void I2S_Init(LPC_I2S_TypeDef *I2Sx);
void I2S_DeInit(LPC_I2S_TypeDef *I2Sx);

/* I2S configuration functions --------*/
void I2S_Config(LPC_I2S_TypeDef *I2Sx, uint8_t TRMode, I2S_CFG_Type* ConfigStruct);
Status I2S_FreqConfig(LPC_I2S_TypeDef *I2Sx, uint32_t Freq, uint8_t TRMode);
void I2S_SetBitRate(LPC_I2S_TypeDef *I2Sx, uint8_t bitrate, uint8_t TRMode);
void I2S_ModeConfig(LPC_I2S_TypeDef *I2Sx, I2S_MODEConf_Type* ModeConfig, uint8_t TRMode);
uint8_t I2S_GetLevel(LPC_I2S_TypeDef *I2Sx, uint8_t TRMode);

/* I2S operate functions -------------*/
void I2S_Send(LPC_I2S_TypeDef *I2Sx, uint32_t BufferData);
uint32_t I2S_Receive(LPC_I2S_TypeDef* I2Sx);
void I2S_Start(LPC_I2S_TypeDef *I2Sx);
void I2S_Pause(LPC_I2S_TypeDef *I2Sx, uint8_t TRMode);
void I2S_Mute(LPC_I2S_TypeDef *I2Sx, uint8_t TRMode);
void I2S_Stop(LPC_I2S_TypeDef *I2Sx, uint8_t TRMode);

/* I2S DMA functions ----------------*/
void I2S_DMAConfig(LPC_I2S_TypeDef *I2Sx, I2S_DMAConf_Type* DMAConfig, uint8_t TRMode);
void I2S_DMACmd(LPC_I2S_TypeDef *I2Sx, uint8_t DMAIndex,uint8_t TRMode, FunctionalState NewState);

/* I2S IRQ functions ----------------*/
void I2S_IRQCmd(LPC_I2S_TypeDef *I2Sx,uint8_t TRMode, FunctionalState NewState);
void I2S_IRQConfig(LPC_I2S_TypeDef *I2Sx, uint8_t TRMode, uint8_t level);
FunctionalState I2S_GetIRQStatus(LPC_I2S_TypeDef *I2Sx,uint8_t TRMode);
uint8_t I2S_GetIRQDepth(LPC_I2S_TypeDef *I2Sx,uint8_t TRMode);

/**
 * @}
 */


#ifdef __cplusplus
}
#endif


#endif /* __LPC_SSP_H_ */

/**
 * @}
 */

/* --------------------------------- End Of File ------------------------------ */
